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Polymide/Fe3O4-carbonized Membranes for Gas Separation
Zhao Xuan-Ying1; Wang Tong-Hua1; Li Lin1; Liu Ying1; Cao Yi-Ming2
关键词Magnetism Functional Carbon Membrane Gas Separation Permeability
刊名JOURNAL OF INORGANIC MATERIALS
2010
DOI10.3724/SP.J.1077.2010.00047
25期:1页:47-52
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Materials Science, Ceramics
研究领域[WOS]Materials Science
关键词[WOS]ETHER SULFONE KETONE) ; CARBON MEMBRANES ; MOLECULAR-SIEVES ; PERFORMANCE ; POLYIMIDE ; SIMULATION ; FILMS
英文摘要Novel functional carbon membranes for gas separation were designed and prepared by incorporating Fe3O4 nanoparticles into carbon membranes precursor polyimide. The as-synthesized membranes were characterized by TEM, XRD and VSM. The effects of Fe3O4 addition and the final pyrolysis temperature on the gas permeability were investigated. The results show that Fe3O4 nanoparticles transformed into other phase morphologies are helpful to form the graphite-like layers during the pyrolysis process, which make the membrane with two types of carbon structure : amorphous carbon and graphite-like layers. All the functional carbon membranes exhibit magnetism. Single gas permeation test results show that the as-synthesized membranes exhibit an outstanding molecular sieving capability together with high gas permeability. The gas permeability of H-2 is 61 times higher than the pure carbon membrane and the H-2/CO2 selectivity is also improved. Fe3O4 addition and the final pyrolysis temperature siginificantly impair the gas permeability. When the Fe3O4 content is 20wt%, the permeabilities of pure gas H-2, CO2, O-2, N-2, CH4 in the functional carbon membrane are 15476, 4385, 1565, 193 and 114 Barrers (1Barrer = 1 x 10(-10) cm(3) (STP) . cm/(cm(2) . s . cmHg)), respecticvely. The final pyrolysis temperature also has a remarkable effect on the gas separation performance.
语种英语
WOS记录号WOS:000273793600010
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/141649
专题中国科学院大连化学物理研究所
作者单位1.Dalian Univ Technol, Sch Chem Engn, Dept Chem Engn & Mat Sci, State Key Lab Fine Chem,Carbon Res Lab, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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Zhao Xuan-Ying,Wang Tong-Hua,Li Lin,et al. Polymide/Fe3O4-carbonized Membranes for Gas Separation[J]. JOURNAL OF INORGANIC MATERIALS,2010,25(1):47-52.
APA Zhao Xuan-Ying,Wang Tong-Hua,Li Lin,Liu Ying,&Cao Yi-Ming.(2010).Polymide/Fe3O4-carbonized Membranes for Gas Separation.JOURNAL OF INORGANIC MATERIALS,25(1),47-52.
MLA Zhao Xuan-Ying,et al."Polymide/Fe3O4-carbonized Membranes for Gas Separation".JOURNAL OF INORGANIC MATERIALS 25.1(2010):47-52.
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